Life support systems of spaceships and submarines are designed assuming that average consumption of oxygen for 1 person is 1 kg per day. To obtain oxygen, reaction of sodium peroxide with carbon dioxide exhaled by people is used (RbO2 + CO2 =>). Calculate the mass of sodium peroxide which must be taken on an expedition to provide oxygen to a crew of 4 people for a week.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
Life support systems of spaceships and submarines are designed assuming that average
consumption of oxygen for 1 person is 1 kg per day. To obtain oxygen, reaction of sodium
peroxide with carbon dioxide exhaled by people is used (RbO2 + CO2 =>).
Calculate the mass of sodium peroxide which must be taken on an expedition to provide oxygen to a crew of 4 people for a week.
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